The W25Q128JV is a 128M-bit Serial Flash memory offering high performance in compact, low-power systems. Operating at 2.7V–3.6V with power-down current as low as 1μA, it supports standard SPI, Dual, and Quad I/O at clock speeds up to 133MHz. Ideal for XIP, data storage, and code shadowing, it features 65,536 pages of 256 bytes, with flexible 4KB–64KB erase options. It includes JEDEC ID, SFDP, a 64-bit unique ID, and three 256-byte security registers for secure applications.